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    • 1. 发明申请
    • OLEFIN POLYMERISATION CATALYST
    • OLEFIN聚合催化剂
    • WO2007137849A8
    • 2008-07-10
    • PCT/EP2007004828
    • 2007-05-31
    • BOREALIS TECH OYREKONEN PETRIDENIFL PETERLEINONEN TIMO
    • REKONEN PETRIDENIFL PETERLEINONEN TIMO
    • C08F10/00C08F4/651C08F4/655
    • C08F110/06C08F4/6557C08F4/651C08F2500/12C08F2500/18C08F2500/24
    • The present invention relates to particulate olefin polymerisation catalyst components comprising an alkaline earth metal, a compound of a transition metal and an electron donor, characterized in that the catalyst particle size distribution of the catalyst component is essentially monomodal and has a SPAN value below 1.2, where SPAN is defined as: (Particle diameter at 90 % cumulative size)-(Particle diameter at 10 % cumulative size) / (Particle diameter at 50 % cumulative size). The particulate olefin polymerisation catalyst components of the present invention are provided by a process which comprises preparing a solution of a complex of an alkaline earth metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium, reacting said complex in the solution form with a compound of a transition metal to produce a dispersion, wherein the dispersed phase predominantly contains the alkaline earth metal in said complex, and solidifying said dispersed phase to obtain said catalyst component, and is characterized in that a second organic liquid medium is added to the reactor after mixing the alkaline earth metal complex with the transition metal compound.
    • 本发明涉及包含碱土金属,过渡金属和电子给体的化合物的颗粒状烯烃聚合催化剂组分,其特征在于催化剂组分的催化剂粒度分布基本上是单峰的,SPAN值低于1.2, SPAN定义为:(颗粒直径为90%累积尺寸) - (10%累积尺寸下的粒径)/(50%累积尺寸下的粒径)。 通过一种方法提供本发明的颗粒状烯烃聚合催化剂组分,该方法包括通过使所述金属的化合物与所述电子给体或其前体在有机物中反应制备碱土金属和电子给体的络合物的溶液 液体反应介质,使所述溶液形式的复合物与过渡金属的化合物反应以产生分散体,其中分散相主要包含所述络合物中的碱土金属,并固化所述分散相以获得所述催化剂组分,并且是 其特征在于,在将碱土金属络合物与过渡金属化合物混合后,将第二有机液体介质加入到反应器中。